cache-tree.c: typefix

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/cache-tree.c b/cache-tree.c
index a10902f..28b78f8 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -341,7 +341,7 @@ static int update_one(struct cache_tree *it,
        }
 
        if (dryrun) {
-               char hdr[200];
+               unsigned char hdr[200];
                int hdrlen;
                write_sha1_file_prepare(buffer, offset, tree_type, it->sha1,
                                        hdr, &hdrlen);